智飞生物：冻干水痘灭活疫苗获临床试验批准

Group 1 - The core point of the article is that Zhifei Biological's subsidiary has received approval for clinical trials of a new vaccine aimed at preventing chickenpox and shingles [1] Group 2 - Zhifei Longkema, a wholly-owned subsidiary of Zhifei Biological, is responsible for the development of the lyophilized inactivated chickenpox vaccine [1] - The approval was granted by the National Medical Products Administration, allowing the company to proceed with clinical trials [1]